SERVICE AND SPARES
Greenstar Ri Compact 6 720 646 610 (2013/12)
38
Fig. 73 Heat exchanger cleaning tool
To clean the front channel of the heat exchanger
3. Orient the cleaning tool (2) as shown in figure 74 and insert the tool
into the front channel for cleaning.
4. Move the cleaning tool handle in an up and down motion, using the
front edge of the heat exchanger as a pivot, to clean the channel.
▶ Use the brush to dislodge the debris and pour water down the
channels to flush out the debris.
Fig. 74 Cleaning the front channels
6.8
REPLACEMENT OF PARTS
6.8.1
REMOVING THE OUTER CASE
Remove the bottom panel:
1. Push in the two catches to release.
2. Lower the bottom panel slightly.
3. Slide forward to remove.
Fig. 75 Bottom panel
To remove the outer case, to gain access to the components:
1. Release the two screws securing the control panel.
2. Pull down to release the two catches.
3. Pull the bottom of the control panel forward and down.
4. Lower the control panel into the service position
5. Undo and remove the two bottom retaining screws.
6. Lift the spring clips on top of the case.
7. Pull the case towards you to remove.
On completion of the heat exchanger cleaning and re-
assembly, perform the fan pressure test as described in
section 6.5.2
6720803800-03.1Wo
1.
2.
1
6720803800-04.1W
o
4.
3.
1
CAUTION:
Mains supplies:
▶ Turn off the gas supply and isolate the mains supplies
before starting any work on the boiler and observe all
relevant safety precautions.
CAUTION:
Component replacement:
▶ Replace the burner housing gasket and the Flueway
sump seal when re-assembling the heat exchanger.
Do not reassembly the heat exchanger and Flueway
until new gaskets and seals are available.
▶ After replacement of a gas related component, where
a gasket or seal has been disturbed or replaced, check
for gas tightness using a gas sniffer/analyser.
▶ On re-assembly check all affected seals for cracks,
hardness and deterioration.
If damaged or in any doubt the seal must be replaced.
▶ Also after re-assembly, carry out the following
checks:
Fan pressure in section 6.5,
Flue gas analysis in section 6.6.
6720646610-49.2W
o
1.
3.
2.